These are the FSB and memory buses respectively. So there are two pipes, one between the processor and the memory controller hub (chipset) and the other between the memory controller hub and the RAM. The main concern is that the memory speed should not bottleneck the performance of the system.With Intel-based processors, the processor has to talk to the memory through the chipset, where the memory controller resides. The 'Bearlake' P35/G3x/Q3x/X38 chipsets support DDR2-533 through DDR2-800. The i975X chipset drops support for DDR2-400, and supports DDR2-533 and DDR2-667, as do the 965 series chipsets. For instance, the i945 series chipsets support DDR2-400 through DDR2-667.
So which does the motherboard support? 1066/1333 RAM or 800, or all of them? The FSB speed is the speed of the link between the processor and chipset.The memory speed is the speed of, well, the memory and its bus to the chipset.Modern chipsets can run them independently without a significant performance hit. However, the 'memory standard' is DDR2-800.
When you say if the mobo supports it.let me give an example. noob question here, I just got confused by this.
Quote:Originally posted by Rewdoalb:quote:Originally posted by Sterling_Aug:You can use any RAM speed up to the speed of the processor if the mobo supports it.
